What happens if I miss the deadline?
The annual deadline for submitting your online Self Assessment and paying any tax owed is midnight on 31st January. While most self-employed people these days choose to file their Self Assessments online, it’s still possible to do so the old way – via paper forms. Be warned though, HMRC must receive this by 31st October. If you don’t file your return and pay any tax due on time, you’ll face fines – and there are potential extra penalties. How much is the fine if I miss the Se